2011 Annual Meeting Abstracts
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FLORIDA ENTOMOLOGICAL SOCIETY 94TH ANNUAL MEETING PRESENTATION ABSTRACTS (Some with Spanish translation) Posters DSP1 Candidatus Liberibacter asiaticus Infection Modifies Host Preference of Diaphorina Citri Kuwayama (Hemiptera: Psyllidae) Via Mechanisms Which May Enhance Transmission. Hermann, Sara L., Mann, R.S., Ali, J.G., Tiwari, S., Pelz-Stelinski, K., Alborn, H.T., and Stelinski, L.L. University of Florida Entomology and Nematology Department Citrus Research and Education Center (IFAS-CREC) 700 Experiment Station Road, Lake Alfred, FL 33850. [email protected] Transmission of plant pathogens by insects is a complex process involving interactions between the plant, insect and pathogen. Experiments evaluated how Candidatus Liberibacter asiaticus infection influenced D.citri host selection. Two-choice bioassays, settling experiments, nutrient analysis and headspace volatile collections evaluated plant status and D.citri behavior. Collectively, our results indicate D.citri preference behavior may be modified by changes associated with bacterial plant infection that alter nutrients and headspace volatiles, ultimately promoting the spread of disease. DSP2 Tuta absoluta (Lepidoptera: Gelechiidae), a Species of Concern to Agriculture in Florida. Julieta Brambila. USDA-APHIS-PPQ, P.O. Box 147100, Gainesville, FL 32614. Tuta absoluta is a small moth from South America that belongs in the Gelechiidae family. It is a primary pest of tomato, causing crop losses up to 100%, but it also feeds on other Solanceous plants, both native and commercial. It entered Europe in 2006 (reported first in Spain in 2008) and spread to the east and south; it now occurs as far east as Iraq and also in some North African countries. In the Americas, T. absoluta has been recently found in northern Panama. Surveys in tomato fields are taking place in Florida in 2011 for this pest leafminer. The Cooperative Agriculture Pest Survey Program (CAPS) is leading in this effort in cooperation with various agencies and personnel. As of June 2011 Tuta absoluta has not been found in Florida and has not been reported from any other U.S. state. The purpose of this presentation is to explain why this non-native species, also known as the South American Tomato Leafminer, is of such concern that early detection surveys were initiated and to present preliminary results of the spring season survey, with a discussion of some findings. 2 DSP3 Baseline Susceptibility Study for Cyantraniliprole (Cyazypyr™ 20 SC, DPX-HGW86) To Pepper Weevil, Anthonomus eugenii Cano (Coleoptera: Curculionidae). Rafael Caballero1, David Schuster1, Hugh Smith1 and Hector Portillo2 1 Gulf Coast Research and Education Center, University of Florida. 14625 C.R. 672. Wimauma, FL 3359, [email protected]. 2 DuPont Crop Protection, Stine-Haskell Research Center. 1090 Elkton Road. Newark, DE 19711. Cyantraniliprole is a new insecticide in the new Anthranilic Diamides class with a novel mode of action. The baseline was developed with a susceptible laboratory colony of pepper weevil using pepper seedlings and a systemic bioassay. As a comparison, thiamethoxam was used. Cyantraniliprole and thiamethoxam inhibited daily feeding, showing a pooled LC50 and slope values of 2.12690 mg ai L-1 and 1.4318 and 0.45263 mg ai L-1 and 3.7971 after seven days of exposition, respectively. DSP4 Calophya latiforceps, a New Species of Jumping Plant Lice (Hemiptera: Calophyidae) Associated with Schinus terebinthifolius (Anacardiaceae) in Brazil. D. Burckhardt, J. P. Cuda, V. Manrique, R. Diaz, W. A. Overholt, D. A. Williams, L. R. Christ, And M. D. Vitorino. University of Florida, Department of Entomology & Nematology, P. O. Box 110620, Gainesville, FL 32611-0620. [email protected] A new species of leaflet galling psyllid was discovered attacking Brazilian peppertree in Bahia, Brazil in March 2010. A formal morphological description of new psyllid Calophya latiforceps sp. nov. (Hemiptera: Calophyidae) was prepared along with molecular evidence confirming new species designation. This previously unknown natural enemy may have potential as a biological control agent for Brazilian peppertree. DSP5 Thrips Species in Wheat Production Areas of Lakes District of Turkey. Ozan Demirözer, Joseph Funderburk, and Mrittunjai Srivastava. North Florida Research and Education Center, 155 Research Road, Quincy, FL 32351-5677. [email protected] Lakes district is located in west part of the Mediterranean region of Turkey and it covers provinces of Antalya, Burdur and Isparta. In this study, we aimed to determine Thrips species in wheat production areas of lakes district due to keep in different habitats within. Samples were collected in between 15th May to 23rd June of 2010 (beginning of milk stage to the grain period of ears) from 50 different fields and altitudes (800-1200m) and 100 ears were collected from each field. In this study Aeolothrips intermedius Bagnall, A. collaris Priesner, Frankliniella tenuicornis (Uzel), Haplothrips tritici (Kurdjumov), Limothrips denticornis Haliday, Sitothrips arabicus Priesner, Thrips angusticeps Uzel were determined. Result of the study Haplothrips tritici (Kurdjumov) was found to be the main species in all sampling areas. 3 DSP6 Efficacy of Essential Oil Lures for Detection of Redbay Ambrosia Beetle, Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae). Paul E. Kendra, Jerome Niogret, Wayne S. Montgomery, Jorge S. Sanchez, Jorge E. Peña, Nancy D. Epsky, and Robert R. Heath. USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158. [email protected] The redbay ambrosia beetle (RAB) is a wood borer that vectors laurel wilt, a lethal vascular disease of trees in the Lauraceae, including avocado. Field tests and chemical analyses were conducted with commercial lures of manuka oil and phoebe oil to (1) compare efficacy of lures for capture of RAB, (2) compare captures in Lindgren funnel traps versus sticky traps, (3) evaluate lure longevity in Florida, and (4) determine release rates of putative attractants. DSP7 Scolytinae (Coleoptera: Curculionidae) Inhabiting Avocado (Persea americana) in Florida. R. E. Duncan , M. Thomas, G. Brar, S. McLean and J. E. Pena. University of Florida, Tropical Research and Education Center, 18905 SW 280th Street, Homestead, FL 33031. [email protected] During the last 3 years, logs of avocado as well as trees infested by scolytinae have been collected in Florida. Logs or portions of avocado trunks have been placed in emergence cages/boxes and held for 2-5 months under laboratory conditions. Scolytinae emerging from P. americana have been either identified by RED or sent to identification by MT at FDOACS, Entomoloy. Here we present a summary of the species emerging from avocado and compare the frequency of the species with those emerging from P. borbonia and P. pallustris. DSP8 Chemical Control of Scolytinae (Coleoptera: Curculionidae) Infesting Avocado (Persea americana) in Florida. J. E. Pena, R. E. Duncan , R. Cave , Jonathan H. Crane , Paul Kendra and J. Capinera. University of Florida, Tropical Research and Education Center, 18905 SW 280th Street, Homestead, FL 33031. [email protected] Three trials were undertaken to determine the effectiveness of insecticides against Scolytinae infesting avocado between 2010 and 2011. These included contact and systemic insecticides applied either to trees or to avocado logs. Efficacy of the insecticides was determined either by the number of entrance holes into logs or trees or by emergence of scolytinae from treated and untreated logs/trees. The effectiveness of the treatments is discussed. 4 DSP9 Effectiveness of Surfactants and Physical Control of Brevipalpus phoenicis Infesting Lemons. Ignacio Baez, M. Hennessey, K. Santos, D. Carrillo, R. E. Duncan and Jorge E. Pena University of Florida, Tropical Research and Education Center, 18905 SW 280th Street, Homestead, FL 33031. [email protected] Brevipalpus phoenicis (Acarina: Tenuipalpidae) as vector of citrus leprosies is feared as an invasive species Several trials were undertaken to determine the effectiveness of surfactants, soaps and brushing against Brevipalpus phoenicis infesting post harvested lemons. The effectiveness of the treatments is discussed. DSP10 Choice Tests of Silverleaf Whitefly, Bemisia tabaci B Biotype, on Zucchini Squash and Buckwheat and the Effect of Delphastus Catalinae on Whitefly Population Densities. Janine Razze and Oscar E. Liburd. University of Florida, Entomology and Nematology Department, Bldg. 970 Natural Area Drive, PO Box 110620, Gainesville, FL 32611. [email protected] Zucchini squash is susceptible to feeding damage from immature silverleaf whiteflies. This study investigated preference of the silverleaf whitefly between zucchini squash and buckwheat, and how Delphastus catalinae affected whitefly populations. More whiteflies were recorded on zucchini squash compared with buckwheat. Fewer whiteflies were observed in the cage with D. catalinae compared with other treatments. Our findings suggest that the implementation of an alternative host and D. catalinae can be used to suppress whitefly populations. DSP11 Potential Attractants for the Redbay Ambrosia Beetle (Xyleborus glabratus Eichhoff). Elena M. Rhodes. University of Florida, North Florida Research and Education Center, 155 Research Road, Quincy, FL 32351-5677. [email protected] The redbay ambrosia beetle (RAB) was first detected in Florida in 2005. The fungus they carry causes laurel wilt, which kills members of the family Lauraceae. The purpose of